Gas-lighting device



TuSTITES AND E. L. KNOEDLER.

GAS LIGHTING DEVICE. APPLICATION FILED MAY 7, 1918.

MIL

Ilium" INVENTORS WIQ N MQ Cm;

Patented Jan. 6, 1920'.

' ATNT canton.

ToWNsEND sTITEs AND ELMER L. KNQEDLER, or GLouon's-TnrtciTY, NEW JENSEN,

ASSIGNORS To WELSIBACH oonroRATIoN on NEW JERSEY.

COMPANY, on GLOUCESTER oITY, NEW J RSEY, A

GAS-LIGHTING DEVICE.

Patented Jan. 6, 1920.

Application filed May 7, 1918. Serial No. 233,018.

Torall whom it may concern:

Be it known that we, TOWNSEND S ITES and ELMER L. KNOEDLER, citizens of the United States, residing at Gloucester City, Camden county, New Jersey, have invented awnew and useful Improvement in Gas- Lighting Devices, of which the following is a full clear, and exact description, reference being had to the accompanying drawings, forming part of this specifica ion, in which- Figure 1 is a side elevation of a gas llghting device embodying our invention.

Fig. 2 is a vertical section of the same.

Fig. 3 is a top plan view of the burner cap and mantle carrier.

Fig. 4 is a side elevation showmg the device applied to a Bunsen tube, before the mantle is burned and shaped, and

Fig. 5 is a similar view showing the final form of the mantle.

Our invention has relation to gas-lighting devices, and is designed to provide a cheap, simple and efficient gas lighting device employing an upright mantle which can be used to replace bat-wing burners. Batwing burners, although still in large use, are very inefiicent. Their use is, however, continued, because" of the-fact that many persons are' either unable or unwilling to incur the expense complete incandescent lamp equipments of the relatively expensive character heretofore V on the market.

I Heretofore upright mantles have always. been factory hardened and shaped, and when applied to a Bunsen burner have been supported from above.

Heretofore it has always been considered necessary to support upright mantles from above; but we have discovered that by fastening the lower end of the limp mantle fabric to a carrier, leaving the upper end free, such limp mantles can be successfully used on upright burners allowing the shrinkage during ceed in a downward direction when in place on the upright burner. We have found such a system is successful, particularly where the length of the mantle is less compared with the diameter than in the ordinary uprigh mantle supported from above, as shown 1n the drawing. 7

7 cap member adapted to readily of providing their burners with burning out and shaping to" pro- In accordance with our invention, we provide a lighting device comprising a burner fit over the end of a, Bunsen burner tube,- and such as shown at-Q inthe accompanying drawing.

This cap member is provided with an internal gauze 8. Eli designates an upriglit'l-imp mantle whose base is firmly secured to the cap, preferably by tying with a string: or

cord 5. The limp mantle is preferably open at both its upper and lower ends, the upper end portion being provided with a draw string 6 in order 'to provide for a restricted opening at the top. The upper portion of the mantle isalso preferably made more 1nflammable than its remaining portion ,by

treating it with some suitable material, such.

as collodion. When the device is applied to an upright Bunsen burner and lighted at its upper portion, it will burn downwardly, thereby burning out the topportion first. Consequently enough to tip over the less strong. mantle body and the mantle/will not tip side, wise while the fabric is being burned out.

This making of the upper or more infla'mmable portion is not essential, however,- with many forms of mantles and fabrlcsf'su'ch as cotton or Ramie mantles. During the in-' cineration-o'r burning out of the fabric, the iantle will shrink downwardly and ,in-

this portion willnot be heavy wardly, if itshould be tipped sidewise byav draft, vibration or other cause during the incineration, the mantle will shape to a globular form somewhat similar to that shown in Fig. 5, when thegas and-air mixture is turned on. w r i In order to keep the mantle from sagging during shipment some further support is desir-able. For this purpose we may employ a temporary internal support such as the col-' lapsible tube-8 which can he slipped into themantle in. its collapsed form and then allowed to expand so as: to' hold the meshes of the-fabric under some vertical tension. Unless some support of this character Is provided, the mantle will be liable o; collapse;

on itself in its package during shipment an hence not hardensymmetrically when the fabric is burned out. T he: form of the mantle afterremoving this internal, support; is approximately illustrated by Fig. 4.

(1 ice upright mantle formed of textile fabric and The advantages of our invention result from the cheapness and simplicity of the device which for the first time provides alimp upright mantle as an article of manufacture and sale, and also for the first time a limp upright mantle supported from its lower part and adapted to be attached to an upright burner.

We claim:

1. As a new article of manufacture, an

secured at its lower end to a carrier shaped to be supported" on an upright Bunsen burner, substantially as described.

2. As a new article of manufacture, a tubular mantle composed of a fabric impregnated with a refractory compound, said mantle being secured at its base to a carrier device and arranged to shrink downwardly during incineration and shaping, and being adapted to fit on an upright Bunsen burner,

' substantially as described.

3. As a new article of manufacture, a tubular mantle for upright Bunsen burners composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a "carrier device, said carrier device forming the sole support for the mantle during incineration and shaping, and being adapted to fit on an upright Bunsen burner, substantially as described.

4. As a new article of manufacture, a tubular mantle composed of a fabric impregnated with refractory salts of rare earths, said mantle being proportioned to shape properly when incinerated in upright position and having its base portion secured to a carrier device, said carrier device forming the sole support for the mantle during incin eration and shaping, substantially as described.

5. As anew artlcle of manufacture, a

tubular mantle for upright burners composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its lower portion to a carrier device and being free at its upper end whereby it may shrink downwardly while shaping in place on an upright burner, substantially as described.

6. As a new article of manufacture, a tubular mantle for upright burners, composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a carrier device, said carrier device forming the sole support for the mantle during incineration'and shaping, and also the sole means for attaching the article to an upright Bunsen burner, substantially as described.

7. As a new article of manufacture, a tubular mantle for upright burners, composed of a fabric impregnated with refractory salts of rare earths, saidmantle being secured at its base to a carrier device, said carrier device forming the sole support for the mantle during incineration and shaping, and being adapted to fit on an upright Bunsen burner, the mantle being arranged to provide'a restricted opening at its upper end after shaping, substantially as described.

8. The combination with an upright Bunsen burner, of a tubular mantle com posed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a carrier device which forms the sole support for-the mantle during incineration and shping and fits'on an upright Bunsen burner, substantially as described. V

9. As a new article of manufacture, a tubular mantle for upright burners composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a carrier device, said carrier device forming the sole support for the mantle during incineration and shaping, and being adapted to fit on the upper end of an upright Bunsen burner, and a support arranged to prevent injurious distortion of the mantle duringshipment, substantially as described.

10. As a new article of manufacture, a tubular mantle for upright burners, composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a carrier device, said carrier device forming the sole support for the mantle during incineration and shaping, and being adapted to fit on the upper end of an upright burner, the upper portion of the mantle being more inflammable than its lower portion, substantially as described.

11. As a new article of manufacture, a tubular mantle for upright burners, composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured. at its carrier device forming the sole support for the mantle during-incineration and shaping,

as described.

12. As a new article of manufacture, a. tubular mantle composed of a fabric impregnated with refractory salts of rare earths, said mantle being secured at its base to a carrier device having an impedance therein, said carrier device forming the sole support of the mantle during incineration and shaping and being arranged to engage theupper end of an upright Bunsen burner, substantially as described.

13. A gas-lighting device comprising a cap member adapted to fit a Bunsen tube, and a limp mantle secured at its base to said cap member, said mantle having means for and adapted to slide frictionally on the upper end of a Bunsen burner, substantially providing a restricted opening at its upper thereof in tension; substantially as deend, substantially as described. scribed.

14. A gas-lighting device comprising a In testimony whereof, We have hereunto 10 carrier, a mantle secured at its lower end set our hands. 5 to the carrier, and an internal temporary support frictionally engaging the upper or- TOWNSEND STITES.'- tion of the mantle and holding the fa rio ELMER L. KNOEDLER. 

